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Well for starters there is a FAQ on this. i finally ordered an entire Fan assembly to do this write up and because my fans were hardly spinning. for a Subaru radiator fan I ordered the primary and secondary fans for a Subaru Impreza. These are for 1993-2001 Imprezas Primary Fan assembly Part Number: 45121FC050 The primary fan has 5 blades Secondary Fan Assembly Part Number: 73310FC050 The Secondary fan has 7 Blades Both fans and part numbers above only fit the Primary mitsu fan only!!!!!!!!!!! http://i139.photobucket.com/albums/q299/I-W/subaru%20Fan%20Mod/5844A36E-F99A-438B-8949-18F024E48690-6109-00000AAF45559FE7_zpsdf58e850.jpg http://i139.photobucket.com/albums/q299/I-W/subaru%20Fan%20Mod/346FED54-EA34-47F8-A05F-94D370FCDFC9-6109-00000AAF33ECB3EC_zpsf5805eb3.jpg As far as wire colors they are Blue and Black just like on the Quest fan motor. the new fan motors are the same for each fan assembly part number above. just the blades and frame for the fans are different. http://i139.photobucket.com/albums/q299/I-W/subaru%20Fan%20Mod/030C1262-C35E-4E40-8FCA-B691DDD36954-6163-00000AB2D1606C59_zpsa20e1dba.jpg The original motor and new motors. the bolt pattern is the same. http://i139.photobucket.com/albums/q299/I-W/subaru%20Fan%20Mod/0E73626C-030E-4925-AF09-10833ECF2A7F-6109-00000AAFDF6A4516_zpsb3b3d955.jpg not bolted in but it lines up perfectly. http://i139.photobucket.com/albums/q299/I-W/subaru%20Fan%20Mod/0369F413-1347-4424-8250-A92C1C53FE26-6109-00000AAF27D2294F_zpsba2d997b.jpg Horrible Side View of motors. http://i139.photobucket.com/albums/q299/I-W/subaru%20Fan%20Mod/D2F27468-8AAA-4EDD-A584-294053990B7E-6109-00000AAFD656A7CD_zps9e393d85.jpg fan mounting screws stock VS new. Same thread pattern. http://i139.photobucket.com/albums/q299/I-W/subaru%20Fan%20Mod/38128B07-6D0D-4064-8F11-FD6D5E28587A-6109-00000AAF2177B939_zps65cb584e.jpg you can see the difference once the fan is mounted. i used one stock screw and one new screw. but in the end i used all new screws and put a tiny bit of Blue loc-tite on them. there is more than enough clearance for the longer screw in the pic below you can see the new fan screw on right and original on left. http://i139.photobucket.com/albums/q299/I-W/subaru%20Fan%20Mod/EB14BDA9-A98D-4A31-8F77-A7D158BD93D7-6109-00000AAFEC9E0425_zps4293f820.jpg as far as fans you need to seperate the fan from the motor to get it out of the new frame to install on the mitsu frame. be careful there is a washer between the motor and fan. dont drop it like i did and see it roll under the center of the car. glad i saw it. be sure to use it when reassembling the fan. The nut holding the fan on is 8MM. blue loc-Tite that nut as well http://i139.photobucket.com/albums/q299/I-W/subaru%20Fan%20Mod/32E77155-2D5D-469E-80E2-0FD669F97068-6163-00000AB2F2525C0D_zpsfb1006ac.jpg final result. http://i139.photobucket.com/albums/q299/I-W/subaru%20Fan%20Mod/C4ED4DB3-A438-4608-AF73-868D9F8469F6-6109-00000AAF11AE788C_zps2f998eaa.jpg fan is in and ready to install. i didnt think a picture of it installed in the car was necessary. Fan is in the car and spins freely and does not touch anything. also i did cut and solder the leads with heat shrink and then electrical taped each separately. Also the only tip i can give, do to past experience, is to cut one wire longer than the other. offset the cut wires. i had once cut the wires on a previous car and they some how rubbed together and shorted out. i had to replace the entire harness on the car from headlights to battery. This is a quick short write up but hope it helps someone out. I-W,